Browse
For Sale
Antiques CollectiblesApparelBaby Kids ItemsBooks， Movies And MusicElectronicsFree StuffGarden OutdoorHealth BeautyHome GoodsHome Improvement SuppliesMusical InstrumentsOffice SuppliesPet SuppliesSporting GoodsTicketToys GamesTransportationOthers
Jobs
AccountingAdministration & Office SupportAdvertising， Arts & MediaBanking & Financial ServicesCall Center & Customer ServiceCEO & General ManagementCommunity Services & DevelopmentConstructionConsulting & StrategyDesign & ArchitectureEducation & TrainingEngineeringFarming， Animals & ConservationGovernment & DefenseHealthcare & MedicalHospitality & TourismHuman Resources & RecruitmentInformation & Communication TechnologyInsuranceLegalManufacturing， Transport & LogisticsMarketing & CommunicationsMining， Resources & EnergyReal Estate & PropertyRetail & Consumer ProductsSalesScience & TechnologySelf EmploymentSport & RecreationTrades & ServicesOther
Property
BuyRent
Cars
Used CarsNew CarsOthers
Services
BusinessCraftsDesign And WebEventsHome ImprovementLegalLessonsPersonalPetsPhotographyRepair And Technical SupportWellnessWriting， Translation， And TranscriptionOthers
Community
Activities & GroupsArtists & MusiciansClasses & LessonsEventsFriendship & NetworkingLost & FoundRideshareSports TeamsVolunteersTravel & Travel PartnersSkills & Language SwapOther

What is the recommended tire pressure for BMW?

1 Answers
HeidiDella
07/29/25 8:50pm
BMW tires should be inflated to 2.5 bar. Introduction to tire pressure: Strictly speaking, tire pressure refers to the air pressure inside the tire. In automotive maintenance, the engine is considered the heart of the car - its failure would mean the end of the vehicle's life. Similarly, tire pressure is like the blood pressure of a car, as its level plays a crucial role in the vehicle's performance and power. Impact of tire pressure on vehicle performance: When a car moves at constant speed on level roads, it must overcome rolling resistance from the ground and air resistance. Tire pressure significantly affects the rolling resistance coefficient. When pressure decreases, the rolling resistance coefficient increases rapidly because under-inflated tires experience greater deformation during rolling, leading to increased hysteresis loss. Therefore, maintaining proper tire pressure ensures optimal vehicle performance.
Was this review help?
11
4
Share
More Forum Discussions

Do You Need to Press the Brake Every Time You Shift Gears?

For automatic transmission cars, you must press the brake when shifting gears. For manual transmission cars, when shifting from a higher gear to a lower gear, if the speed is too high, you need to press the brake to control the speed before shifting. Shifting from a lower gear to a higher gear does not require pressing the brake. For automatic transmission cars, you must press the brake when shifting gears: For safety reasons, since automatic transmissions have a torque converter or automatic clutch, the car will immediately move forward or backward once power is engaged. There is no manual clutch process, and the engine won't stall. Therefore, the car's movement forward or backward can only be controlled by the brake. Since the brake and accelerator are on the same side, your foot is either on the brake or the accelerator. The system is designed to require pressing the brake to shift gears mainly to prevent your foot from being on the accelerator. Additionally, the brake is used to control the car's speed. Manual transmission cars have more gears, with forward gears ranging from 1 to 6, all requiring manual shifting. Therefore, when shifting gears in the same direction, you only need to press the clutch to shift. However, if shifting from a forward gear to reverse, you also need to press the brake first, stop the car completely, and then shift into reverse. When shifting from a higher gear to a lower gear, if the speed is too high, you need to press the brake to control the speed before shifting; otherwise, it may damage the gearbox. Shifting from a lower gear to a higher gear does not require pressing the brake.
5
5
Share

Is a tire pressure of 190 normal in summer?

Tire pressure that is too low increases the contact area between the tire and the ground, leading to abnormal temperature rises inside the tire during driving. Additionally, severe deformation of the tire sidewalls accelerates the aging of internal steel wires and fabric layers, which can lead to potential blowouts. It also increases fuel consumption and reduces tire lifespan. According to the international GBT2978-2008 standard: (1) Standard tires: 2.4-2.5 bar (2) Reinforced tires: 2.8-2.9 bar (3) Maximum pressure: Should not exceed 3.5 bar. Generally, car tires require a pressure of about 2 kg--2.5 kg. Based on the principle of thermal expansion and contraction, in summer, the pressure can be adjusted 0.1-0.2 lower than the normal value, while in winter, it can be adjusted 0.1-0.2 higher than the normal value.
7
0
Share

Can Mercedes-Benz Owners Check the Location of Their Car?

Mercedes-Benz owners can check the location of their car, which is a hidden feature of Mercedes-Benz vehicles. Here is a detailed introduction about Mercedes-Benz cars: 1. Overview: Mercedes-Benz is a German automobile brand and one of the premium car brands. It is known for its high technical standards, quality benchmarks, and strong innovation capabilities. The Mercedes three-pointed star is the emblem of the Mercedes-Benz brand. 2. Others: The Mercedes S-Class is the flagship luxury model in the Mercedes lineup, favored by many successful individuals for its elegant and stable appearance as well as luxurious features. The new S-Class is only a mid-cycle facelift model, with minor exterior modifications. The redesigned bumper air intakes and LED daytime running lights give the vehicle a more youthful appearance.
8
5
Share

What are the precautions for parking in heavy rain?

Precautions for parking in heavy rain include avoiding low-lying areas, soft ground that may cause the car to get stuck, and being cautious of falling objects when parking under trees. Here are the relevant details: 1. Avoid low-lying areas: Urban roads or parking lots often have significant undulations, such as underpasses and culverts, which can accumulate deep water during heavy rain, affecting driving safety. Therefore, do not park your vehicle in low-lying areas. 2. Soft ground may cause the car to get stuck: During heavy rain, dirt roads absorb water and become muddy. If the soil is too soft, it may lead to the car getting stuck. To avoid this, park your vehicle on hardened surfaces like concrete or asphalt during heavy rain. 3. Be cautious of falling objects when parking under trees: During storms or thunderstorms, some trees may break due to strong winds or lightning strikes, potentially falling onto your car.
18
0
Share

Driving in Standard Mode or Economy Mode?

Generally, it is sufficient to drive in Comfort Mode. If driving in the city, Comfort Mode is recommended. For highway driving, Economy Mode is advised, as switching to this mode can improve fuel efficiency. However, when overtaking on the highway, Comfort Mode is suggested. Below is relevant information: 1. Economy Mode: Also known as ECO mode, this setting primarily optimizes fuel consumption by adjusting automatic transmission gear shifts, engine RPM, vehicle speed, braking, and transmission oil temperature. The ECU calculates the optimal fuel injection to the engine, effectively reducing fuel consumption compared to normal driving modes. 2. Standard Mode: When Economy Mode is activated, the vehicle's ECU restricts throttle and fuel injector operations, thereby reducing engine power output. In Standard Mode, operations are normal, with no restrictions or changes to the throttle or fuel injectors.
15
0
Share

Should You Engage the Handbrake When Parking in the Rain?

You should engage the handbrake when parking in the rain. On flat ground, it's acceptable not to use the handbrake, but on slopes, it is necessary. After reaching the intended parking spot, press the brake to stop the car firmly, engage the handbrake, shift directly into P gear, and turn off the engine. There's no need to shift into N gear before turning off the engine and then shifting into P gear. Handbrake usage tips: 1. Do not pull the mechanical handbrake too tightly: Over time, this can cause the handbrake to loosen or the cable to break. 2. Avoid parking on slopes with the handbrake engaged for extended periods: This can lead to wear on the handbrake cable. If you must park on a slope for a long time, after engaging the handbrake, place a brick on the downhill side to secure the car and reduce pressure on the handbrake. 3. Park on level ground whenever possible: Avoid pressing against curbs or parking space limiters.
8
1
Share
Trending Ranking
Do I Need to Register for Changing Rims?
Is the CVT transmission of the Nissan Murano durable?
What is the fuel consumption of the Hyundai ix35 2.0 automatic transmission?
4
What Are the Differences Between 1.4T and 1.6L Engines in Cars?
5
What Causes a Sudden Loss of Power in a Car?
6
How to Wire a Motorcycle for Hazard Lights?
7
What are the reasons why the air pump cannot build up pressure?
8
What does Honda SYNC mean?
9
What is the Difference Between Automatic and Dual Clutch?
10
What is the recommended tire pressure for passenger cars?
More Forum Discussions

How to Start a Lexus When the Key Fob Battery Dies?

11
3
0

Why is a new car particularly fuel-consuming?

20
1
0

Where is the fuel temperature sensor located?

10
2
0

What causes the clutch pedal to stay depressed and not return in a car?

4
3
0
About Us
Terms of Use
Privacy Policy
Help
Contact Us
FAQ
Cookie
Cookie Policy
Cookie Settings
© 2025 Servanan International Pte. Ltd.